Scientists from the University of Bristol and the University of Zurich have shown that the Titanichthys - a giant armoured fish that lived in the seas and oceans of the late Devonian period 380-million-years ago—fed in a similar manner to modern day basking sharks.
source https://www.lifetechnology.com/blogs/life-technology-science-news/ancient-giant-armored-fish-fed-in-a-similar-way-to-basking-sharks